White discharge in 4 year olds underwear

I’ve seen little bits of it every couple months in her underwear (like tiny amounts). Usually she doesn’t have discharge in her underwear though. She never has any symptoms. And she is very sensitive when it comes to anything uncomfortable, she’d definitely let us know.

She had an accident in her underwear about an hour ago (she went potty). I was in the middle of something, I said if she needs help I can help her get changed in 5 mins. She waited the 5 mins and I go and change her and she had a bunch of white discharge in her underwear. Like a good sized amount and it was pasty white. She has accidents pretty often still but usually she gets her bottoms off pretty much immediately after an accident. But this was the first time really she waited a few mins before getting her underwear off, so I didn’t know if that could have caused more white discharge even tho it was just a few mins?

Is this normal?